| 摘要 |
PROBLEM TO BE SOLVED: To simplify a connecting structure of a pair of steel pipes and reduce cost.SOLUTION: A joint mechanism of a pair of steel pipe piles 1A, 1B comprises inner joints 10A, 10B and an exterior joint 20 that is installed around the inner joints. An inward key part 23, which engages with outward peripheral grooves 13 of the inner joints 10A, 10B, is formed on the exterior joint 20. The exterior joint 20 comprises multiple unit members 21 which are arranged in parallel around the inner joints 10A, 10B. A standard unit member 21A has an engaging convexity 24. An engaging concavity 14, which engages with the engaging convexity 24 and prevents the standard unit member 21A from falling off outward, is formed on the inner joints 10A, 10B. Cutout parts 15A, 15B into which the standard unit member 21A can be inserted to a position where the engaging convexity 24 can engage with the engaging concavity 14, are formed on a wall surface composing the engaging concavity 14.SELECTED DRAWING: Figure 1 |
